Gas-producer.



w. B. CHAPMAN. GAS PRODUCER. APPLICATION FILED FEB. 26. 1912.

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Patented Dec. 28, 1915.

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WILLIAM BREWSTER CHAPMAN, OF NEW YORK, N. Y., ASSIGNOR T0 CHAPMAN ENGI- NEERING 00., OF NEW YORK, N. Y., A CDRPORATIQN OF NEW YORK.

GAS-PRODUCER.

Specification of Letters Patent.

Patented Dec. as, 1915.

Application filed February 26, 1912. Serial N0. 679,863.

To all whom it may concern.

Be it known that I, lVILLIAM B. \CHAP- MAX, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, county and State of New York, have invented certain new and useful Improvements in Gas-Producers, of which the following is a full, clear, andexact description.

My invention relates especially to gas producers wherein there is a rotating body section surrounding the ash zone, and the object of the invention is to effect the ready and preferiibly automatic removal of the ash fromjthe pit or other part of the producer in which the ash accumulates.

To this end my invention involves certain novel features of construction. and com bination and arrangement of parts, all of which will be fully set forth hereinafter and particularly pointed out in the claims.

For the purpose of a detailed description of my invention, reference is now had to the accompanying drawings, which represent, as an example, the preferred embodiment of the invention.

In these drawingsFigure l is a. section of a plan view of so much of the producer as concerns my present invention; Fig. 2 is a detailed section on the line 2-2 of Fig.1; Fig. 3 is a detailed section on the line 33 of Fig. 1; Fig. 4: is a side elevation of the ash plow as shown in Fig. 3; and Fig. 5 is a fragmentary elevation particularly showing the dip in the ash shelf. My present improvements relate exclusively to the disposal of the ashes. I have confined the drawings to these features and illustrated only fragments of the producer,

according to which 10 is a part of the to tating section of the producer Which incloses the ashes, and 11 is the usual ash pit or foundation receiving the ash from the section 10 and flooded with water to quench the ashes and seal the producer.

My present invention has to do with the devices for removing the ashes from the pit 11;

The ashes falling by gravity and under the Weight of the contents of the producer lie in the pit 11 on the angle of repose from the lower end of the producer section 10. The problem is to remove the ash outward and upward of said pit. According to this,

with its tongue 13 mounted to twist in a.

bearing 14, attached to the lower portion of the producer section 10. This plow 12 pro- Jectsdownward to the pit l1 and is rotatable 111 its bearing 14; so that its angularity to the line of travel may be regulated. For this purpose a handle 15 is attached to the tongue 13, the handle coacting with a toothed quadrant 16 to hold the handle and hence the plow in any desired adjustment. The plow 12 in thus sweeping through the body of ash. in the-pit 11 will form a clefttherein. Ordinarily, the ash would tumble back 1n to this cleft eoually from both sides, but owing to the pressure of the fuel bed within the producer, the ash will fall outward much in excess of the inward falling motion. The result therefore is a continued outward and upward movement of the ash in the wake of the plow. This effect may be enhanced by adjusting the angularity of the plow to its line of travel, so that it tends to thin the ash outward in addition to and independently of the natural falling tendency above referred to; and it is further enhanced by the sloping inner wall of the pit 11 (see Fig. 2).

By these means, therefore, a continued movement of the ash outward and upward from the lower edge of the producer section 10 is brought about, and it is necessary to remove the ash from the outer portion of pit 11 over and beyond the top edge thereof. This is effected by a shelf 17, which is in the form of a plate horizontally-disposed and attached to the producer section 10 to travel therewith between said section and top edge of the pit 11, as shown in Fig. 2.

The leading edge of this shelf dips downward below said top edge of the pit 11 in the manner shown in Fig. 5. The result of this is that as the ash shelf sweeps with the the thereby piled on the shelf.

the shelf 17. Preferably the said bar 18 is mounted in a suitable stationary support 19 by a pivot 20 at one end and its free outer end is held yielding toward the center of the producer by a spring 21. The rear of the following edge of the ash shelf is cut oil diagonally as shown in Fig. 1 and is furnished with a vertical lip or guide 17, against which the free inner end of the scraper 18 runs when the scrape' and ash shelf are in contact. i-\ccordingly, in the operation of the producer. as the section rotates, the plow steadily throws the ash outward toward the pit 11 and the ash shelf 17 as steadily scoops up the ash which is Periodically the ash shelf runs under the scraper 18. and this, striking the lip 17, throws from the shelf the accumulated ash. During this 20* operation, the scraper 1S swings outward, to

permit the lip 17 to pass, after which the spring 21 returns the scraper to its inward position pre'parator to a repetition of the operation. The ashes being thusthrown forward. beyond the pit 11 may be disposed 'of manually or otherwise as desired.

lVha t, I claim is:

l. A gas producer ha ving a traveling shelf or scoop arranged to move me a bodv of ash to scoop or skim off the upper part thereof, and means coacting with the said shelf or scoop periodically to sweep or throw the ashes from the same.

2. A gas producer having means. for ,automatically raising or elevating a body of ash. a traveling shelf or scoop arranged to move over said body of ash to scoop 0; skim olf the upper part thereof, and means coacting with said shelf or scoop periodically to sweep or throw the ashes from the same.

A gas producer having a traveling shelf or scoop arranged to move over a body of ash to scoop or skim oil the upper part thereof, and a relatively stationary sweeper or scrapervunder which the said shell or scoop periodi ally runs, wherebythe ashes areswept or thrown from the shelf.

4. In a gas producer the con'ibination of :1

traveling shelf or scoop adapted to more over a body of ash to scoop or skim off the upper part thereof, and a swinging scraper mounted independently of the said shelf or scoop and adapted periodiailly to sweep over the same for the purpose specified.

I). In a gas producer the combination of a traveling shelf or scoop adapted to move over a body of ash to scoop or skim off the upper part thereof, a diagonal wall on said shelf and a swinging scraper mounted independently of the shelf but in the path thereof and adapted to be engaged by the said diagonal wall for the purpose specified.

6. In a gas producer the combination of a stationary ash pit. a rotating producer section extending inn, the same,'an ash plow carried by such section and serving to work the ashes onward/fand upward in the outer part of the pit, Qshelf or scoop traveling with the producer section outside thereof, to scoop or skim off the upper part of the ashes in the pit, and a scraper past which the shelf or scoop periodically moves to throw or sweep the ashes from the same.

- 7. In a gas producer the combination of a stationary ash pit, a rotating producer section extending into the same, an ash plow carried by such s ction and serving to work the ashes onward and upward in the outer part of the pit, a shelf or scoop traveling with the producer section outside thereof. to scoop or skim off the upper part of the ashes in the pit, and a scraper past which the shelf or scoop periodically moves to throw or sweep the ashes from the same. means for hingedly mounting the scraper means for yieldingly returning it to normal position and a diagonal guide to engage the free end of the scraper for the purpose pecified.

lir testimony whereof 1 have nine to this specification in the we subscribing witnesses.

\YlliLli-Ul BREWSTER Witnesses:

Wnaanis, 1t. S'rirLw'nLn.

signed my presence u'l' CHAPMAN. 

